/*
 * Copyright (c) 2012, Fredrik Yttergren
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name LucidBot nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Fredrik Yttergren BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package setup.ui.custom;

import com.vaadin.ui.TabSheet;

import java.util.HashMap;
import java.util.Map;

public class LazyTabSheet extends TabSheet {
    private final Map<Integer, LazyTab> lazyTabComponents = new HashMap<>();

    public void addInstallerTab(final InstallTab tab) {
        addTab(tab.getContainer(), tab.getCaption());
    }

    public void addLazyTab(final LazyTab lazyTab) {
        Tab tab = addTab(lazyTab.getContainer(), lazyTab.getCaption());
        tab.setEnabled(false);
        lazyTabComponents.put(getTabPosition(tab), lazyTab);
    }

    public void init() {
        addListener(new TabSheet.SelectedTabChangeListener() {
            @Override
            public void selectedTabChange(final TabSheet.SelectedTabChangeEvent event) {
                TabSheet sheet = event.getTabSheet();
                TabSheet.Tab tab = sheet.getTab(sheet.getSelectedTab());
                refresh(sheet.getTabPosition(tab));
            }
        });
        for (LazyTab lazyTab : lazyTabComponents.values()) {
            lazyTab.setEnabled(true);
        }
    }

    private void refresh(final int tabPosition) {
        lazyTabComponents.get(tabPosition).refresh();
    }
}
